Interlocking flap configuration blank



FIG. 1 is a top plan view of an interlocking flap configuration blank showing my new design;

FIG. 2 is a bottom plan view thereof.

FIG. 3 is a rear elevational view.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a left side elevational view thereof. 

The ornamental design for interlocking flap configuration blank, substantially as shown. 